{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:51.582198", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2018-Aug-08_to_2018-Aug-11_16.5_-4.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2018080001916}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "August 08 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 11 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 83127.08875247996}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Angola", "Congo", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -4.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 16.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "16.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, -5.5], [16.46, -5.0], [16.32, -4.68], [15.97, -4.53], [15.75, -4.0], [15.97, -3.47], [16.5, -3.25], [17.03, -3.47], [17.18, -3.82], [17.53, -3.97], [17.75, -4.5], [17.63, -4.8], [17.75, -4.85], [18.0, -4.75], [18.53, -4.97], [18.75, -5.5], [18.65, -5.75], [18.75, -6.0], [18.65, -6.25], [18.75, -6.5], [18.53, -7.03], [18.18, -7.18], [18.03, -7.53], [17.5, -7.75], [16.97, -7.53], [16.8, -7.12], [16.5, -7.25], [15.97, -7.03], [15.75, -6.5], [15.97, -5.97], [16.32, -5.82], [16.35, -5.75], [16.25, -5.5]]]]}, "2018-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -4.5], [14.47, -3.97], [15.0, -3.75], [15.25, -3.85], [15.32, -3.82], [15.46, -3.5], [15.25, -3.0], [15.47, -2.47], [16.0, -2.25], [16.53, -2.47], [16.68, -2.82], [16.75, -2.85], [17.0, -2.75], [17.53, -2.97], [17.75, -3.5], [17.65, -3.75], [17.75, -4.0], [17.65, -4.25], [17.75, -4.5], [17.65, -4.75], [17.68, -4.82], [17.75, -4.85], [18.0, -4.75], [18.53, -4.97], [18.75, -5.5], [18.65, -5.75], [18.75, -6.0], [18.65, -6.25], [18.75, -6.5], [18.53, -7.03], [18.18, -7.18], [18.03, -7.53], [17.5, -7.75], [16.97, -7.53], [16.8, -7.12], [16.5, -7.25], [15.97, -7.03], [15.75, -6.5], [15.88, -6.2], [15.75, -6.15], [15.5, -6.25], [14.97, -6.03], [14.75, -5.5], [14.85, -5.25], [14.82, -5.18], [14.47, -5.03], [14.25, -4.5]]]]}, "2018-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -4.5], [14.47, -3.97], [15.0, -3.75], [15.25, -3.85], [15.32, -3.82], [15.46, -3.5], [15.25, -3.0], [15.47, -2.47], [16.0, -2.25], [16.53, -2.47], [16.68, -2.82], [16.75, -2.85], [17.0, -2.75], [17.53, -2.97], [17.75, -3.5], [17.65, -3.75], [17.75, -4.0], [17.65, -4.25], [17.75, -4.5], [17.65, -4.75], [17.68, -4.82], [17.75, -4.85], [18.0, -4.75], [18.53, -4.97], [18.75, -5.5], [18.65, -5.75], [18.75, -6.0], [18.65, -6.25], [18.75, -6.5], [18.53, -7.03], [18.18, -7.18], [18.03, -7.53], [17.5, -7.75], [16.97, -7.53], [16.8, -7.12], [16.5, -7.25], [15.97, -7.03], [15.75, -6.5], [15.88, -6.2], [15.75, -6.15], [15.5, -6.25], [14.97, -6.03], [14.75, -5.5], [14.85, -5.25], [14.82, -5.18], [14.47, -5.03], [14.25, -4.5]]]]}, "2018-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.25, -4.5], [14.47, -3.97], [15.0, -3.75], [15.25, -3.85], [15.32, -3.82], [15.46, -3.5], [15.25, -3.0], [15.47, -2.47], [16.0, -2.25], [16.53, -2.47], [16.68, -2.82], [16.75, -2.85], [17.0, -2.75], [17.53, -2.97], [17.75, -3.5], [17.65, -3.75], [17.75, -4.0], [17.65, -4.25], [17.75, -4.5], [17.65, -4.75], [17.75, -5.0], [17.53, -5.53], [17.18, -5.68], [17.03, -6.03], [16.5, -6.25], [16.25, -6.15], [16.0, -6.25], [15.75, -6.15], [15.5, -6.25], [14.97, -6.03], [14.75, -5.5], [14.85, -5.25], [14.82, -5.18], [14.47, -5.03], [14.25, -4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.999315663359937}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.826443049826487}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.150835543871437, 26.005121175939394, 26.748314341871605, 26.142395465477193]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.782780356475484, 28.464834230896543, 29.08385920447546, 28.362381208108616]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4878741230747943, 1.5613406087731063, 2.3195109741509063, 1.6913980579348522]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.630907265021733, 2.0063602780851397, 2.999315663359937, 2.267594031953763]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4423239920637245, 1.666932580950395, 2.481779247916784, 1.8496418825833847]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6961745978478424, 2.0944378701001285, 3.4160984968694352, 2.533195081829684]}}